October 2026

​​​​​​​NOTE: If a return due date falls on a scheduled holiday or weekend, returns will be due the next working day.

October 1

• Estimated Insurance Premiums (Second installment)
  

October 10

• Affordable Housing
  
• Legal Process
  
• Twice-Monthly Income Tax Withholding Return (September 16—September 31 payment)
  

October 15

• Corporation Income Tax/LLET and Pass-through Entity Return and Payment Due (FY ending 6/30)
  
• Estimated Corporation Income Tax/Limited Liability Entity Tax/One Fourth Estimate (FY ending 6/30)
  
• Estimated Corporation Income Tax/Limited Liability Entity Tax/One Fourth Estimate (FY ending 4/30)
  
• Estimated Corporation Income Tax/Limited Liability Entity Tax/One Fourth Estimate (FY ending 1/31)
  
• Estimated Corporation Income Tax/Limited Liability Entity Tax/One Fourth Estimate (FY ending 10/31)
  
• Motor Vehicle Usage Tax—Loaner/Rental
  
• Nonresident Withholding Tax Return and Payment Due (FY ending 6/30)
  
• Monthly Income Tax Withholding Return (September payment)
  

October 20

• Alcohol Tax
  
• Cigarette Wholesaler
  
• Coal Severance Tax Return (September payment)​
  
• Commercial Mobile Radio Service (CMRS) 911 Charge
  
• Consumer Use Tax
  
• Health Care Provider Tax
  
• Insurance Premium Surcharge
• Motor Vehicle Rental/Ride Share Tax
  
• Oil Production Tax Return (September payment)​
• Sales Tax (Monthly, Quarterly)
  
• Sports Wagering Excise Tax
  
• Telecommunications Tax
  
• Tobacco and Vapor Products, Snuff, and Chewing Tobacco
  
• Transient Room Tax
  
• Utility Gross Receipts License Tax
  
• Waste Tire Fee
  

October 26

• Electric Vehicle Power Excise Tax
• Motor Fuels Tax​
• Sales Tax Accelerated Filers
• Twice-Monthly Income Tax Withholding Return (October 1—October 15 payment)